"The agency was a military service governed by army laws and regulations, in the same fashion as the Soviet Army or MVD Internal Troops. While most of the KGB archives remain classified, two online documentary sources are available. Its main functions were foreign intelligence, counter-intelligence, operative-investigatory activities, guarding the State Border of the USSR, guarding the leadership of the Central Committee of the Communist Party and the Soviet Government, organization and ensuring of government communications as well as combating nationalism, dissent, and anti-Soviet activities." - (en.wikipedia.org 30.01.2020)
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